Spec Clutch SF621 Stage Performance Clutch Kit - 1

The Spec Clutch SF621 Stage 1 Clutch Kit is a high-performance upgrade designed for bolt-on naturally aspirated and mildly modified forced induction engines. Engineered to deliver stock-like daily drivability with significantly improved durability and holding power over the factory clutch, the Stage 1 is the ideal choice for performance street driving, light drag strip use, road racing, autocross, and more.

Key Features:

• High clamp pressure plate for increased torque capacity over stock
• Steel-backed, multi-compound woven organic friction disc for smooth, progressive engagement and excellent wear life
• High torque sprung hub assembly with double spring cover relieves for flexibility and heat-treated components for long-term strength and durability
• Carbon Kevlar-based organic lining integrally molded for smooth engagement and extended service life
• Integrally bonded steel disc backing for strength under high clamp loads and elevated temperatures
• SFI approved for racing safety
• Includes alignment installation tool for straightforward fitment

Approved Driving Applications: Street, Drag, Drift, Road Race, Rallye, Pulling, Autocross

The Stage 1 represents SPEC's entry-level performance clutch, offering the feel and ease of a stock clutch combined with the reliability and quality expected from a dedicated performance manufacturer. The kit includes the pressure plate, clutch disc assembly, and installation tool.